Ivan Bessarabov

Here is a list of 309 code examples how to increment variable in Perl.

I think that is it very funny, creative and awful at the same time.

As far as I can see, not all code examples are working and not every one is interesting, but some of the solutions are truly magical.

Here is one example created by Maddingue:

#!/usr/bin/perl

eval((map{s/^./\$/,s/ //g;$_}(split"$/",<<'')[-1])[0]);

     A

    A A        +       +

   A   A       +       +

  AAAAAAA   +++++++ +++++++

 A       A     +       +

A         A    +       +;

print $A;

Here is the full list: https://squareperl.com/en/lots-of-ways-to-increment-variable